Answer:
The war in Europe and Asia were different in the area of diplomacy.
Stalin was an established war leader who kept asking the other Allies to open a Western front against the Nazis.
The fighting in the Pacific was largely carried out by the American forces with British support.
Another difference was in the area of terrain. The war in Europe was mostly a land war, with the exception of submarine warfare in the Mediterranean and around the British Isles.The war in the Pacific was largely fought over water. There were also issues of climate differences too.